diff options
Diffstat (limited to 'src/android/jpeg/post_processor_jpeg.cpp')
| -rw-r--r-- | src/android/jpeg/post_processor_jpeg.cpp | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/android/jpeg/post_processor_jpeg.cpp b/src/android/jpeg/post_processor_jpeg.cpp index 93acfe52..b9b9dc00 100644 --- a/src/android/jpeg/post_processor_jpeg.cpp +++ b/src/android/jpeg/post_processor_jpeg.cpp @@ -39,11 +39,45 @@ int PostProcessorJpeg::configure(const StreamConfiguration &inCfg, } streamSize_ = outCfg.size; + + thumbnailer_.configure(inCfg.size, inCfg.pixelFormat); + StreamConfiguration thCfg = inCfg; + thCfg.size = thumbnailer_.size(); + if (thumbnailEncoder_.configure(thCfg) != 0) { + LOG(JPEG, Error) << "Failed to configure thumbnail encoder"; + return -EINVAL; + } + encoder_ = std::make_unique<EncoderLibJpeg>(); return encoder_->configure(inCfg); } +void PostProcessorJpeg::generateThumbnail(const FrameBuffer &source, + std::vector<unsigned char> *thumbnail) +{ + /* Stores the raw scaled-down thumbnail bytes. */ + std::vector<unsigned char> rawThumbnail; + + thumbnailer_.createThumbnail(source, &rawThumbnail); + + if (!rawThumbnail.empty()) { + /* + * \todo Avoid value-initialization of all elements of the + * vector. + */ + thumbnail->resize(rawThumbnail.size()); + + int jpeg_size = thumbnailEncoder_.encode(rawThumbnail, + *thumbnail, {}); + thumbnail->resize(jpeg_size); + + LOG(JPEG, Debug) + << "Thumbnail compress returned " + << jpeg_size << " bytes"; + } +} + int PostProcessorJpeg::process(const FrameBuffer &source, Span<uint8_t> destination, CameraMetadata *metadata) @@ -64,6 +98,12 @@ int PostProcessorJpeg::process(const FrameBuffer &source, * second, it is good enough. */ exif.setTimestamp(std::time(nullptr)); + + std::vector<unsigned char> thumbnail; + generateThumbnail(source, &thumbnail); + if (!thumbnail.empty()) + exif.setThumbnail(thumbnail, Exif::Compression::JPEG); + if (exif.generate() != 0) LOG(JPEG, Error) << "Failed to generate valid EXIF data"; |